<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>observe</title>
        <link rel="stylesheet" href="style.css" />
    </head>
    <body id="app">
        <nav>这是一条导航栏</nav>
        <header class="banner" style="height: 800px">欢迎光临</header>
        <div class="container">
            <section class="banner">你真棒！</section>
            <section>
                <div class="gallery">
                    <img
                        class="lazy_img"
                        src="imgs/first_lazy.jpg"
                        data-src="imgs/first.jpg"
                    />
                    <div>
                        <h4>壁纸1</h4>
                        和司法和山东发货速度哦
                    </div>

                    <div style="text-align: right">
                        <h4>壁纸2</h4>
                        和司法和山东发货速度哦
                    </div>
                    <img
                        class="lazy_img"
                        src="imgs/second_lazy.jpg"
                        data-src="imgs/second.jpg"
                    />
                    <img
                        class="lazy_img"
                        src="imgs/third_lazy.jpg"
                        data-src="imgs/third.jpg"
                    />
                    <div>
                        <h4>壁纸3</h4>
                        和司法和山东发货速度哦
                    </div>
                </div>
            </section>
            <section class="banner">Awesome！</section>
            <section class="banner">GREAT JOB!</section>
            <section class="banner">HAVE A NICE DAY!</section>
        </div>
        <footer class="banner">再见！</footer>
    </body>
    <script src="./script.js"></script>
</html>
